However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
Conservation biologists are concerned with the protection and sustainability of natural resources like air, water, land and wildlife. The job requires at least a bachelor's degree in a scientific field like biology, though graduate-level programs are often required, especially if teaching and research is a career goal. Many conservation biologists work with the government or private agencies, serving as consultants on land use issues.